A manual for the installation, maintenance, and operation of the Brewer Keyboard. This was a keyboard developed by the International Typographical Union and Unitypo, Inc. for use with the Teletypesetter perforator. The Teletypesetter perforator had a conventional QWERTY keyboard, and produced a 6-level punched paper tape for use in controlling a Linotype or Intertype linecaster. The Linotype/Intertype, however, had a different keyboard layout, the ETAOIN arrangement. The Brewer Keyboard was a solenoid-based attachment which fitted over the Teletypesetter keyboard and provided the user with an ETAOIN keyboard.

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